100分x^3(2x-5)(x+1)+(5x+2)(x-1)=0x^2/3+48/x^2=10(x/3-4/x)√x-1+√2x-3+√3x-5+√4x-5=5x-6

来源：学生作业帮助网 编辑：作业帮 时间：2024/05/06 16:29:43
100分x^3(2x-5)(x+1)+(5x+2)(x-1)=0x^2/3+48/x^2=10(x/3-4/x)√x-1+√2x-3+√3x-5+√4x-5=5x-6

100分x^3(2x-5)(x+1)+(5x+2)(x-1)=0x^2/3+48/x^2=10(x/3-4/x)√x-1+√2x-3+√3x-5+√4x-5=5x-6
100分
x^3(2x-5)(x+1)+(5x+2)(x-1)=0
x^2/3+48/x^2=10(x/3-4/x)
√x-1+√2x-3+√3x-5+√4x-5=5x-6

100分x^3(2x-5)(x+1)+(5x+2)(x-1)=0x^2/3+48/x^2=10(x/3-4/x)√x-1+√2x-3+√3x-5+√4x-5=5x-6
x/3-4/x=t代换可以了